Struct TileViewerParams 

#[repr(C)]
pub struct TileViewerParams {
    pub a: [f32; 4],
    pub b: [f32; 4],
    pub c: [f32; 4],
    pub sub0: [f32; 4],
    pub sub1: [f32; 4],
    pub sub2: [f32; 4],
    pub width: u32,
    pub tex_res: u32,
    pub _pad: [u32; 2],
    pub terrain: TerrainGpu,
    pub _pad2: [f32; 2],
}

std430 params for TileViewer.slang — byte-identical to struct TileViewerParams there (176 bytes). The tile_viewer_params_layout test locks the offsets. Field offsets: a 0, b 16, c 32, sub0 48, sub1 64, sub2 80, width 96, tex_res 100, terrain 112.

Fields

a: [f32; 4]

Face corner A (xyz world) + sphere radius (w).

b: [f32; 4]

Face corner B (xyz), w unused.

c: [f32; 4]

Face corner C (xyz), w unused.

sub0: [f32; 4]

Viewed sub-triangle corner 0 in face barycentric (wb, wc in xy) → UV (0,0).

sub1: [f32; 4]

Sub-triangle corner 1 (wb, wc) → UV (1,0).

sub2: [f32; 4]

Sub-triangle corner 2 (wb, wc) → UV (0,1).

width: u32

Output texture edge (texels).

tex_res: u32

Texture-resolution quantisation grid.

_pad: [u32; 2]

Padding to 16-align the trailing terrain block.

terrain: TerrainGpu

Embedded 56-byte terrain block (shared with the chunk path).

_pad2: [f32; 2]

Tail padding keeping the struct a 16-byte multiple (std430 stride rule).

Trait Implementations

impl Clone for TileViewerParams

fn clone(&self) -> TileViewerParams

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TileViewerParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for TileViewerParams

fn eq(&self, other: &TileViewerParams) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Zeroable for TileViewerParams

fn zeroed() -> Self

Calls zeroed.

impl Copy for TileViewerParams

impl Pod for TileViewerParams

impl StructuralPartialEq for TileViewerParams